//
//  HZHomeCell.swift
//  HansWeibo
//
//  Created by Hans on 16/8/13.
//  Copyright © 2016年 Hans. All rights reserved.
//

import UIKit
import SnapKit
class HZHomeCell: UITableViewCell {
    // 顶部视图的顶部约束
    var bottomViewTopConstraint: Constraint?
    
    // 定义一个ViewModel 供外界赋值
    var homeViewModel: HZHomeViewModel?{
        didSet{
            
//            print(homeViewModel?.homeModel?.retweeted_status)
            // 原创微博  赋值
            originalView.homeViewModel = homeViewModel
            
            //  01 卸载约束
            bottomViewTopConstraint?.uninstall()
            // 代表没有转发微博
            if homeViewModel?.homeModel?.retweeted_status == nil {
                bottomView.snp_updateConstraints(closure: { (make) in
                    bottomViewTopConstraint = make.top.equalTo(originalView.snp_bottom).constraint
                })
                // 隐藏 转发微博
                retweetView.hidden = true
            }else{
                // 赋值
                // 转发微博赋值
                retweetView.homeViewModel = homeViewModel
                // 有转发微博
                bottomView.snp_updateConstraints(closure: { (make) in
                    bottomViewTopConstraint = make.top.equalTo(retweetView.snp_bottom).constraint
                })
                // 显示转发微博
                retweetView.hidden = false
            }
            
            // 底部视图赋值
            bottomView.homeViewModel = homeViewModel
        }
    }
    

    override init(style: UITableViewCellStyle, reuseIdentifier: String?) {
        super.init(style: style, reuseIdentifier: reuseIdentifier)
        setupUI()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    // MARK 设置视图
    private func setupUI(){
        
        backgroundColor = RGB(237, green: 237, blue: 237)
        // 添加控件
        // 01
        contentView.addSubview(originalView)
        contentView.addSubview(bottomView)
        contentView.addSubview(retweetView)
        
        // 添加约束
        // 01
        originalView.snp_makeConstraints { (make) in
            make.leading.trailing.equalTo(contentView)
            make.top.equalTo(8)
            // 该约束 已在自己类中约束
//            make.height.equalTo(50)
        }
        // 02
        retweetView.snp_makeConstraints(closure: { (make) in
            make.leading.trailing.equalTo(contentView)
            make.top.equalTo(originalView.snp_bottom)
            // 该约束 已在自己类中约束
            //make.height.equalTo(50)
        })
        // 03
        bottomView.snp_makeConstraints { (make) in
            bottomViewTopConstraint = make.top.equalTo(retweetView.snp_bottom).constraint
            make.leading.trailing.equalTo(contentView)
            make.height.equalTo(35)
        }
        
        
        contentView.snp_makeConstraints { (make) in
            make.leading.top.trailing.equalTo(self)
            make.bottom.equalTo(bottomView)
        }
    }
    
    // MARK - 懒加载控件
    // 原创微博
    private lazy var originalView: HZHomeOriginalView = HZHomeOriginalView()
    // 底部视图
    private lazy var bottomView: HZHomeBottonView = HZHomeBottonView()
    // 转发微博
    private lazy var retweetView: HZHomeRetweetView = HZHomeRetweetView()
    
    
}


